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Alexeev081 [22]
3 years ago
13

How do you factor this? 2z^2-12z+10=0

Mathematics
2 answers:
maw [93]3 years ago
7 0

2x^2-12z+10=0

Common multiple is 2.

2(z^2-6z+5)=0

Simplify inside parentheses.

2(z-5)(z-1)=0 is your answer

kotykmax [81]3 years ago
4 0

Answer:

This can't be factored right now! But if it is 2z^2+12z+10=0 than it will be factored like this:

2*(z+5)(z+1)

Step-by-step explanation:

2*(z^2+6z+5)=0

2*(z+5)(z+1)

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What is y in 15=-7.5x^2+86x+702
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Answer:

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nasty-shy [4]
It's 85 degrees. Hope this helps
4 0
3 years ago
A random variable x takes four possible values, 0, 2, a, and b, where a and b are unknown numbers. if pr[x = 0] = 0.2, pr[x=2] =
Alexus [3.1K]
\displaystyle\sum_{x\in\{0,2,a,b\}}\mathbb P(X=x)=1
\mathbb P(X=0)+\mathbb P(X=2)+\mathbb P(X=a)+\mathbb P(X=b)=1
0.2+0.4+0.3+\mathbb P(X=b)=1
\implies\mathbb P(X=b)=0.1

\mathbb E(X)=\displaystyle\sum_{x\in\{0,2,a,b\}}x\mathbb P(X=x)=2.8
0\mathbb P(X=0)+2\mathbb P(X=2)+a\mathbb P(X=a)+b\mathbb P(X=b)=2.8
0.8+0.3a+0.1b=2.8
0.3a+0.1b=2

a+b=6\implies0.3a+0.1b=0.2a+0.1(6)=2
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7 0
3 years ago
4.) 960 meters in 15 seconds<br> Write the following rate as a unit rate
murzikaleks [220]

Answer:

64

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7 0
3 years ago
Which system of inequalities is represented by the graph?
Tamiku [17]
The blue line...
(1,2),(3,1)
slope = (1 - 2) / (3 - 1) = -1/2
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it is shaded below the line....and it is a solid line
this inequality is :
y = -1/2x + 5/2
1/2x + y = 5/2
x + 2y = 5
x + 2y < = 5.....this is ur inequality


red line...
(0,4), (1,1)
slope = (1 - 4) / (1 - 0) = -3/1 = -3

there is a y int at (0,4)
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this inequality is :
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summary :
ur 2 inequalities are : 
x + 2y < = 5 and 3x + y < = 4


4 0
3 years ago
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